package com.youth.framework.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.youth.platform.entity.User;

public class LoginFilter extends HttpServlet implements Filter {

	@Override
	public void doFilter(ServletRequest arg0, ServletResponse arg1,
			FilterChain arg2) throws IOException, ServletException {
		HttpServletRequest request = (HttpServletRequest) arg0;
		HttpServletResponse response = (HttpServletResponse) arg1;
		HttpSession session = request.getSession(true);
		String usercode = (String) request.getRemoteUser();// 登录人
		String user_role = (String) session.getAttribute("role");// 登录人角色
		String url = request.getRequestURI();
		User user = (User) session.getAttribute("user_session");

		if (usercode == null || "".equals(usercode) || user_role == null
				|| "".equals(user_role)) {
			// 判断获取的路径不为空且不是访问登录页面或执行登录操作时跳转
			if (url != null && !url.equals("")
					&& (url.indexOf("Login") < 0 && url.indexOf("login") < 0)
					&& user == null) {
				response.sendRedirect(request.getContextPath() + "/login.jsp");
				return;
			}
		}
//		if (null != user) {
//			request.getRequestDispatcher("/home.html")
//					.forward(request, response);
//		}
		arg2.doFilter(arg0, arg1);
		return;

	}

	@Override
	public void init(FilterConfig arg0) throws ServletException {
		// TODO Auto-generated method stub

	}

}
